Install and use a reverse proxy for staging devfile registry (#5922)

* Kubernetes Manifests to deploy nginx reverse proxy for staging devfile registry

* Get the external address of the loadBalancer service for devfile proxy

* If DEVFILE_PROXY is defined, use it as Devfile registry

* Fix get address from Windows

* Add some log displaying proxy address found

* Filter requests on user agent

* Add Go-http-client user-agent

* Add doc

.ibm/pipelines/kubernetes-tests.sh

@@ -12,6 +12,8 @@ cleanup_namespaces
 export SKIP_USER_LOGIN_TESTS=true
 (
     set -e
+    export DEVFILE_PROXY="$(kubectl get svc -n devfile-proxy nginx -o jsonpath='{.status.loadBalancer.ingress[0].hostname}' || true)"
+    echo Using Devfile proxy: ${DEVFILE_PROXY}
     make install
     make test-integration
     make test-e2e

.ibm/pipelines/openshift-tests.sh

@@ -13,6 +13,8 @@ cleanup_namespaces
 
 (
     set -e
+    export DEVFILE_PROXY="$(kubectl get svc -n devfile-proxy nginx -o jsonpath='{.status.loadBalancer.ingress[0].hostname}' || true)"
+    echo Using Devfile proxy: ${DEVFILE_PROXY}
     make install
     make test-integration
     make test-e2e

.ibm/pipelines/windows-test-script.ps1

@@ -64,6 +64,14 @@ function Run-Test {
     oc login -u apikey -p ${API_KEY} ${IBM_OPENSHIFT_ENDPOINT}
     Check-ExitCode $LASTEXITCODE
 
+    Shout "Getting Devfile proxy address"
+    $DEVFILE_PROXY=$(oc get svc -n devfile-proxy nginx -o jsonpath='{.status.loadBalancer.ingress[0].hostname}')
+    if ( $LASTEXITCODE -eq 0 )
+    {
+        Shout "Using Devfile proxy: $DEVFILE_PROXY"
+        [Environment]::SetEnvironmentVariable("DEVFILE_PROXY", "$DEVFILE_PROXY")
+    }
+
     Shout "Create Binary"
     make install 
     Shout "Running test"